UBUNTU-CVE-2026-53910

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Source
https://ubuntu.com/security/CVE-2026-53910
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-53910
Upstream
  • CVE-2026-53910
Downstream
Related
Published
2026-07-22T14:17:00Z
Modified
2026-08-31T22:15:27Z
Severity
  • 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:L/SI:L/SA:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

diff3 tool from GNU diffutils is vulnerable to a heap‑based buffer overflow due to multiple signed integer overflows in line‑mapping calculations. Incorrect arithmetic in mapping line ranges can result in corrupted values being used for memory allocation and loop bounds. When processing crafted diff output, these overflows may cause the application to allocate insufficient memory and subsequently perform out‑of‑bounds writes during internal processing. An attacker who can control the output of the diff program used by diff3 (e.g. via --diff-program pointing to a malicious script) can trigger out-of-bounds writes, resulting in a crash and potentially remote code execution depending on the environment. This issue has been fixed in commit 9ff04d5b84743e331e80b589335a52c5480d1815 NOTE: The project maintainers claim that this is not a security issue. They state that the worst outcome this issue can cause is a crash of diff and that it cannot be used to escalate privileges.

References

Affected packages

Ubuntu:22.04:LTS
diffutils

Package

Name
diffutils
Purl
pkg:deb/ubuntu/diffutils?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:3.8-0ubuntu2.1

Affected versions

1:3.*
1:3.8-0ubuntu1
1:3.8-0ubuntu2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "diffutils",
            "binary_version": "1:3.8-0ubuntu2.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"
Ubuntu:24.04:LTS
diffutils

Package

Name
diffutils
Purl
pkg:deb/ubuntu/diffutils?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:3.10-1ubuntu0.1

Affected versions

1:3.*
1:3.8-4
1:3.10-1
1:3.10-1build1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "diffutils",
            "binary_version": "1:3.10-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"
Ubuntu:26.04:LTS
diffutils

Package

Name
diffutils
Purl
pkg:deb/ubuntu/diffutils?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:3.12-1ubuntu0.1

Affected versions

1:3.*
1:3.10-4
1:3.12-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "diffutils",
            "binary_version": "1:3.12-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"
Ubuntu:Pro:14.04:LTS
diffutils

Package

Name
diffutils
Purl
pkg:deb/ubuntu/diffutils?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:3.3-1ubuntu0.1~esm1

Affected versions

1:3.*
1:3.2-8
1:3.3-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "diffutils",
            "binary_version": "1:3.3-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"
Ubuntu:Pro:16.04:LTS
diffutils

Package

Name
diffutils
Purl
pkg:deb/ubuntu/diffutils?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:3.3-3ubuntu0.1~esm1

Affected versions

1:3.*
1:3.3-1
1:3.3-2
1:3.3-3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "diffutils",
            "binary_version": "1:3.3-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"
Ubuntu:Pro:18.04:LTS
diffutils

Package

Name
diffutils
Purl
pkg:deb/ubuntu/diffutils?arch=source&distro=esm-infra%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:3.6-1ubuntu0.1~esm1

Affected versions

1:3.*
1:3.6-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "diffutils",
            "binary_version": "1:3.6-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"
Ubuntu:Pro:20.04:LTS
diffutils

Package

Name
diffutils
Purl
pkg:deb/ubuntu/diffutils?arch=source&distro=esm-infra%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:3.7-3ubuntu0.1~esm1

Affected versions

1:3.*
1:3.7-3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "diffutils",
            "binary_version": "1:3.7-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53910.json"